May weather forecastFortuna, CA
May
Weather in May
May, the last month of the spring in Fortuna, is a comfortable month, with temperature in the range of an average high of 61.3°F (16.3°C) and an average low of 46.2°F (7.9°C).Temperature
With the transition into May, Fortuna notes an average high-temperature of a comfortable 61.3°F (16.3°C), closely resembling April. An average low-temperature of 46.2°F (7.9°C) is noted during the nights in May.Humidity
The average relative humidity in May is 80%.Rainfall
In May, the rain falls for 8.2 days. Throughout May, 1.65" (42mm) of precipitation is accumulated. Throughout the year, there are 110.4 rainfall days, and 28.07" (713mm) of precipitation is accumulated.Snowfall
January, March through December are months without snowfall.Daylight
In Fortuna, the average length of the day in May is 14h and 28min.On the first day of May, sunrise is at 6:14 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 8:40 pm PDT.
Sunshine
In May, the average sunshine is 10h.UV index
The average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In May, the UV index of 4 transforms into the following advice:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Fortuna, CA
- Average high temperature in May: 61.3°F
The warmest month (with the highest average high temperature) is August (71.6°F).
The months with the lowest average high temperature are February and December (53.1°F).
- Average low temperature in May: 46.2°F
The month with the highest average low temperature is August (53.2°F).
The coldest month (with the lowest average low temperature) is February (41.7°F).
Average pressure in May
Fortuna, CA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed in May
Fortuna, CA
- Average wind speed in May: 7.7mph
The windiest months (with the highest average wind speed) are March and June (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in May
Fortuna, CA
- Average humidity in May: 80%
The months with the highest relative humidity are February and March (82%).
The months with the lowest relative humidity are September and October (75%).
Average rainfall in May
Fortuna, CA
- Average rainfall in May: 1.65"
The wettest month (with the highest rainfall) is December (5.16").
The driest months (with the least rainfall) are July and August (0.12").
Average rainfall days in May
Fortuna, CA
- Average rainfall days in May: 8.2 days
The month with the highest number of rainy days is March (16.8 days).
The month with the least rainy days is August (1.8 days).
Average snowfall in May
Fortuna, CA
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in May
Fortuna, CA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in May /
Average sunshine in May
Fortuna, CA
- Average daylight in May: 14h and 30min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 10h and 0min
The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in May
Fortuna, CA
- Average sunshine days in May: 21.6 days
The month with the most sunshine days is July (28.1 days).
The month with the least sunshine days is March (12.3 days).
Average UV index in May
Fortuna, CA
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 3).
Average cloud cover in May
Fortuna, CA
- Average cloud cover in May: 35
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in May
Fortuna, CA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
